CN212939645U - Cleaning tool - Google Patents

Abstract

The utility model relates to a garden instrument technical field especially relates to a clean instrument. The cleaning tool includes a hand-held wand; the driving piece is arranged in the handheld rod and is positioned at the bottom end; the cleaning machine head is arranged at the top end of the handheld rod and comprises a machine shell and an impeller, an air outlet is formed in the machine shell, and the impeller is rotatably arranged in the machine shell; and the transmission assembly is in transmission connection with the driving piece and the impeller. In the cleaning tool, the impeller is arranged at the top end of the handheld rod, and compared with a structure that a fan is connected with a long air duct, the cleaning tool can reduce the loss of air speed and improve the cleaning effect; the driving piece is arranged at the bottom end of the handheld rod and is connected with the impeller in a transmission mode through the transmission assembly, the weight of the top of the cleaning tool can be reduced, the cleaning tool is more labor-saving in operation, and the use experience of a user is improved.

Description

Cleaning tool

Technical Field

The utility model relates to a garden instrument technical field especially relates to a clean instrument.

Background

An eave sweeper is a garden tool for sweeping dust, leaves and other sundries on the eave or at a high position of a tile house. The electric eave sweeper generally connects the air outlet of the handheld fan with the long air duct, and sends wind generated by the fan to the eave through the long air duct, so that impurities such as dust and leaves are blown away, and the eave sweeping effect is achieved. However, the loss of the wind speed when the wind is sent to the eave through the long wind barrel is large, so that dust and leaves on the eave cannot be thoroughly removed.

In order to reduce the loss of wind speed, the fan is integrally fixed on the top end of the long rod in the prior art, and the fan is jacked to the eave through the long rod to clean the eave. Although the structure reduces the loss of wind speed, the top end of the long rod is heavy and the operation is laborious because the motor and the battery assembly are arranged on the fan.

Therefore, a cleaning tool capable of reducing wind speed loss and saving labor in operation is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cleaning tool can reduce the wind speed loss, and labour saving operation.

To achieve the purpose, the utility model adopts the following technical proposal:

a cleaning implement comprising:

a hand-held wand;

the driving piece is arranged in the handheld rod and is positioned at the bottom end;

the cleaning machine head is arranged at the top end of the handheld rod and comprises a machine shell and an impeller, an air outlet is formed in the machine shell, and the impeller is rotatably arranged in the machine shell; and

and the transmission assembly is in transmission connection with the driving piece and the impeller.

The cleaning machine head is movably connected with the handheld rod so as to adjust the air outlet angle of the cleaning machine head.

Wherein, the cleaning head still includes:

the first adapter tube comprises a vertical tube and a horizontal tube which are vertically connected, the vertical tube is connected with the handheld rod, and the horizontal tube is rotationally connected with the machine shell; and

a first locking assembly capable of locking an angle of the first adapter tube with the housing.

Wherein, the transmission assembly includes:

the flexible shaft penetrates through the handheld rod, and one end of the flexible shaft is in transmission connection with the driving piece;

the first rotating shaft extends along the axial direction of the horizontal pipe, one end of the first rotating shaft is connected with the first adapter pipe, and the other end of the first rotating shaft is connected with the shell;

the first bevel gear is arranged in the vertical pipe and is in transmission connection with the flexible shaft; and

and the second bevel gear is rotatably sleeved on the first rotating shaft and is in meshed transmission with the first bevel gear, and the second bevel gear is in transmission connection with the impeller.

Wherein the first locking assembly comprises:

the gear piece is arranged on the shell, and a plurality of gear holes are formed in the gear piece around the axis of the horizontal pipe;

the first locking piece is movably connected with the first adapter tube; and

the first elastic piece is connected with the first locking piece and the first adapter tube and can drive the first locking piece to move relative to the first adapter tube so that one end of the first locking piece extends into the gear hole.

Wherein the first locking assembly comprises:

the ratchet wheel is arranged on the shell;

one end of the pawl is rotatably arranged on the first adapter tube, and the other end of the pawl can be matched with the ratchet wheel; and

and the second elastic piece is connected with the first adapter tube and the pawl and can drive the pawl to be matched with the ratchet wheel so as to prevent the shell from rotating.

Wherein, the cleaning head still includes:

the second adapter tube comprises a first tube body and a second tube body which are vertically connected, the first tube body is rotationally connected with the first adapter tube, and the second tube body is rotationally connected with the shell; and

a second locking assembly capable of locking the angle of the second adaptor tube with the housing.

Wherein, the transmission assembly still includes:

the third bevel gear is rotatably sleeved outside the first rotating shaft, and is coaxially arranged and fixed with the second bevel gear;

the second rotating shaft is rotatably arranged in the second pipe body and is coaxially arranged and fixed with the impeller; and

and the fourth bevel gear is sleeved outside the second rotating shaft and is fixed, and the fourth bevel gear is in meshing transmission with the third bevel gear.

Wherein the second locking assembly comprises:

the second locking piece is arranged outside the second pipe body in a sliding mode, one of the second locking piece and the machine shell is provided with a locking groove extending along the axial direction of the second pipe body, and the other one of the second locking piece and the machine shell is provided with a locking block; and

and the third elastic piece is connected with the second locking piece and the second pipe body and can drive the second locking piece to slide relative to the second pipe body so that the locking block is inserted into the locking groove.

One of the second locking piece and the second pipe body is provided with a guide groove extending along the axial direction of the second pipe body, and the other one of the second locking piece and the second pipe body is provided with a guide block in sliding fit with the guide groove.

Wherein, the cleaning head still includes:

one end of the air duct is communicated with the air outlet; and

and the scraper knife is connected with the other end of the air duct.

The cross-sectional area of the air duct is gradually reduced along the airflow flowing direction, and an opening at one end of the air duct, which is connected with the scraper knife, is flat.

Has the advantages that: the utility model provides a cleaning tool. In the cleaning tool, the impeller is arranged at the top end of the handheld rod, and compared with a structure that a fan is connected with a long air duct, the cleaning tool can reduce the loss of air speed and improve the cleaning effect; the driving piece is arranged at the bottom end of the handheld rod and is connected with the impeller in a transmission mode through the transmission assembly, the weight of the top of the cleaning tool can be reduced, the cleaning tool is more labor-saving in operation, and the use experience of a user is improved.

The cleaning machine head is movably connected with the handheld rod, so that the air outlet angle can be adjusted, and the cleaning tool can be used more flexibly.

The horizontal pipe in the first adapter pipe is connected with the casing rotation, can realize that the air-out direction is rotatory around the axis of horizontal pipe, realizes a direction air-out angle and adjusts.

The first adapter pipe and the shell are connected through the second adapter pipe, and the second pipe body in the second adapter pipe is rotatably connected with the shell, so that the rotation of the air outlet direction around the axis of the second pipe body can be realized, and the adjustment of the air outlet angle in the other direction can be realized; through the cooperation of first switching pipe and second switching pipe for the eave cleans the aircraft nose and can realize the angular adjustment in two-dimensional space, is suitable for multi-scene multi-angle transformation.

Drawings

Fig. 1 is a schematic structural view of a cleaning tool provided by the present invention;

fig. 2 is a schematic structural view of a sweeping machine head provided by the present invention;

FIG. 3 is a schematic structural view of another sweeper head provided by the present invention;

FIG. 4 is a front view of the sweeping machine head provided by the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic structural view of a second locking member provided by the present invention;

FIG. 7 is a schematic structural view of a part of the structure of the sweeper head provided by the present invention;

fig. 8 is a schematic structural diagram of a second adapter tube provided by the present invention.

Wherein:

100. a hand-held wand; 200. cleaning the machine head;

11. a handle; 12. a telescopic rod; 13. an auxiliary handle;

21. a housing; 211. a first flange; 212. a second flange; 22. an extension pipe; 23. an air duct; 24. a scraper knife; 25. a first adapter tube; 26. a second adapter tube; 261. a guide block; 27. a second locking member; 271. a locking groove; 272. a guide groove; 281. a pull ring; 282. a gear member; 2821. a gear hole; 291. a ratchet wheel; 292. a pawl;

31. a first bevel gear; 32. a second bevel gear; 33. a first rotating shaft; 34. a third bevel gear; 35. a fourth bevel gear; 36. a second rotating shaft.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment provides a cleaning tool including a hand-held pole 100, a power supply assembly, and a cleaning head 200, the cleaning head 200 being disposed at a tip of the hand-held pole 100. When the cleaning machine is used, an operator holds the handheld rod 100 to move the cleaning machine head 200 to a position to be cleaned, and wind generated by the cleaning machine head 200 blows away impurities such as eave or high dust and leaves, so that the cleaning purpose is achieved.

In this embodiment, the handheld rod 100 includes a handle 11 and an expansion link 12, the handle 11 is used for an operator to hold, the expansion link 12 connects the handle 11 and the cleaning head 200, the expansion link 12 can be adjusted and extended according to the height of the position to be cleaned, so as to adjust the height of the cleaning head 200, thereby satisfying the cleaning requirements of different height positions.

It should be noted that the telescopic rod 12 may adopt any structure capable of adjusting the length in a telescopic manner in the prior art, and the structure and the telescopic principle thereof are not specifically described in this embodiment.

In this embodiment, clean aircraft nose 200 and set up on the top of handheld pole 100, compare among the prior art and send the wind that the above-ground fan produced to eave department through long dryer, can reduce the wind speed loss to improve the effect of cleaning of debris such as wind to dirt ash or leaf, clean more thoroughly.

Specifically, the cleaning head 200 includes a housing 21, an air outlet provided on the housing 21, and an impeller rotatably provided in the housing 21. When the impeller rotates, the air flow in the machine shell 21 can be driven to be discharged from the air outlet, so that the air flow is generated to clean the eave.

The casing 21 includes two end faces oppositely arranged and an arc face connecting the two end faces, the impeller is rotatably arranged in the casing 21, the air outlet is arranged on the arc face, and the air inlet is arranged on one side end face so as to supplement airflow into the casing 21.

Optionally, the sweeper head 200 may further include an extension pipe 22, and one end of the extension pipe 22 is connected to the housing 21 and the other end is connected to the telescopic rod 12. The extension pipe 22 can increase the cleaning height which can be reached by the cleaning head 200, and the situation that the cleaning requirement of a higher position cannot be met due to the short length of the handheld rod 100 is avoided.

Because it needs the motor to provide the required kinetic energy of rotation as the driving piece for the impeller to clean the instrument during operation, lead to the operator to be hard when using because of "heavy foot is light" for avoiding cleaning the instrument, clean and take time, in this embodiment, the driving piece sets up in handheld pole 100, the driving piece passes through the transmission subassembly and is connected with the impeller transmission that is located telescopic link 12 top, so that transmit the kinetic energy of driving piece to the eminence by handheld pole 100 lower extreme, thereby reduce the weight at cleaning instrument top, and then make garden instrument's operation laborsaving, be favorable to improving user's use and experience.

Further, the driving member is disposed at the bottom end of the hand-held lever 100 so that the center of gravity of the hand-held lever 100 is close to the bottom end, and the operator can use the hand-held lever more easily. Specifically, the bottom downwardly extending of handle 11 forms the installation cavity that holds the driving piece, and the driving piece sets up in the installation cavity. In this embodiment, the driving member is a motor.

In order to further facilitate the operation of the user, the telescopic rod 12 is further provided with an auxiliary handle 13. When the operator uses the cleaning tool, he can hold the handle 11 with one hand and the auxiliary handle 13 with the other hand to make the cleaning tool more stable to hold.

Optionally, a power supply assembly may be further disposed in the mounting cavity on the handle 11 or at the lower end of the handle 11, and the power supply assembly is connected to the motor to supply power to the motor. Illustratively, the power supply assembly may be a battery or power cord, the battery being capable of storing electrical energy for more flexibility in movement during use.

Furthermore, the telescopic rod 12 is of a hollow structure, and at least part of the transmission assembly can be arranged in the telescopic rod 12, so that on one hand, the transmission assembly can be protected, and impurities such as dust and the like are prevented from being accumulated on the transmission assembly or rusting is avoided; on the other hand, the appearance of the garden tool can be tidier.

In this embodiment, the handle 11 is further provided with a switch assembly, the switch assembly is electrically connected with the power supply assembly, and the on-off of the power supply assembly and the motor can be controlled, so that the start and stop of the sweeper head 200 are controlled. Illustratively, the switch assembly can comprise a button or a push button, and the on-off of the motor and the power supply assembly is controlled in a pressing or pushing mode, so that the operation is convenient.

In order to avoid the mistaken touch of the operator on the switch assembly, a trigger is further arranged on the handle 11, only when the operator touches the switch assembly and pulls the trigger, the power supply assembly is communicated with the motor, and the cleaning machine head 200 is started, so that the operator is prevented from starting the cleaning machine head 200 due to the mistaken touch of the switch assembly.

It should be noted that, it is a relatively conventional means in the art to control the on/off between the battery and the electrical component through a switch assembly such as a push button or a push button, and any one of the switch assemblies in the prior art may be used in the present embodiment as long as the connection relationship, the specific structure, and the specific control manner between the switch assembly and other components are adopted, and the detailed description of the specific structure, the connection relationship with other components, and the specific control manner of the switch assembly is not described in detail herein.

In order to further improve the cleaning effect of the cleaning head 200, the cleaning head 200 further includes an air duct 23, and the air duct 23 is communicated with the air outlet of the blower 21. By arranging the air duct 23, the function of gathering air flow generated by the fan 21 can be achieved, so that the wind power is more concentrated, and the cleaning effect is improved.

For example, the cross-sectional area of the air guide duct 23 may be gradually reduced in the flow direction of the airflow to further concentrate the wind force.

For example, an opening at one end of the air duct 23 close to the outlet air may be flat, so that the air flow may form a relatively thin air knife, which is beneficial to improving the effect of the air flow on removing impurities.

In order to clean the dirt on the eave conveniently, the air duct 23 is further connected with a scraper knife 24, and the scraper knife 24 can scrape the dirt on the eave, so that the cleaning is more thorough.

In this embodiment, the scraper knife 24 and the air duct 23 are integrated, the scraper knife 24 can be formed by extending the bottom edge of the air duct 23, and the scraper knife 24 can not only scrape mud and remove dirt, but also further guide the air flow to flow along the scraper knife 24, so as to guide the air flow to the eave position, which is beneficial to improving the cleaning effect.

To facilitate the storage of the gardening tools, the sweeper head 200 is detachably connected to the handle bar 100. In this embodiment, the extension tube 22 can be detachably connected to the telescopic rod 12 by screws or quick clamps, so as to achieve quick assembly and disassembly.

When cleaning the eave, the operator needs to pull the distance away from the eave along the horizontal direction so as to lift the cleaning head 200 to the top of the eave through the certain inclination angle of the hand-held rod 100, thereby cleaning the eave. Because the handheld rod 100 is arranged obliquely, the cleaning head 200 generates moment under the action of gravity, an operator needs to provide large holding force, and the operation is laborious.

To solve the above problem, in the present embodiment, the housing 21 is disposed beside the top end of the hand-held lever 100. The operator can lift cleaning head 200 to the position that is higher than the eave earlier when cleaning the eave, later remove to the eave side through the operator, will clean head 200 and drive to the eave top for handheld pole 100 can be vertical setting or the less angle of slope, operates more laborsavingly.

Specifically, as shown in fig. 2, the hand lever 100 is provided at one side of the end surface of the housing 21, and the cleaning head 200 further includes a first adaptor pipe 25. The first adaptor pipe 25 is L-shaped and includes a vertical pipe connected to the top end of the extension pipe 22 and a horizontal pipe connected to the housing 21. Through the setting with the horizontal pipe, can stagger casing 21 and handheld pole 100 for when the vertical side that is located the eave of handheld pole 100, casing 21 can be located the top of eave, and handheld pole 100 need not the slope setting or only the less angle of slope can place cleaning head 200 in the eave top, and the operation is more laborsaving.

Further, the cleaning head 200 may further include a second adapter tube 26, the second adapter tube 26 is L-shaped, and includes a first tube body and a second tube body, the first tube body is connected to the horizontal tube, and the second tube body is connected to the housing 21. Through setting up second adapter tube 26, can further stagger handheld pole 100 and casing 21, can change the air-out direction moreover, it is more convenient to use.

In order to better meet the cleaning requirements of different positions, the cleaning machine head 200 is movably connected with the handheld rod 100, so that the cleaning machine head 200 can move relative to the handheld rod 100 to adjust the air outlet angle of the fan 21, the air outlet angle can be adjusted according to the cleaning position, and the cleaning machine head is more flexible to use.

Specifically, the horizontal pipe is rotatably connected with the first pipe body, so that the position of the air outlet on the machine shell 21 is adjusted through the relative rotation of the horizontal pipe and the first pipe body, and the purpose of adjusting the angle of the air outlet machine 21 is achieved.

In order to lock the second adapter tube 26 at a desired angle after rotating relative to the horizontal tube, the cleaning head 200 further includes a first locking component, and the first locking component can lock the horizontal tube and the second adapter tube 26 after the air outlet is adjusted to the desired angle.

As shown in fig. 2, the first locking assembly includes a gear member 282, a first locking member, and a first elastic member. The gear 282 is disposed on the second adaptor tube 26, and the gear 282 is provided with a plurality of gear holes 2821, and the gear holes 2821 are circumferentially distributed around the axis of the horizontal tube. The first locking piece is movably connected with the first adapter tube 25, the first elastic piece is connected with the first locking piece and the first adapter tube 25, and the first elastic piece can drive the first locking piece to move relative to the first adapter tube 25 so that one end of the first locking piece extends into the gear position hole 2821, and therefore the first adapter tube 25 and the second adapter tube 26 are locked and the first adapter tube 25 and the second adapter tube 26 are prevented from rotating relative to each other.

Optionally, the horizontal tube is provided with a fixing portion, and the first locking member is slidably disposed in the fixing portion and extends along the axial direction of the horizontal tube, so that the fixing portion can guide the sliding of the first locking member; the first elastic piece can be a spring, the spring is sleeved outside the first locking piece and positioned in the fixing part, the spring can be prevented from being twisted, and the fixing part can play a role in protecting the spring and the first locking piece; the stops 282 may be arcuate and may be disposed around the circumference of the horizontal tube.

When the air outlet angle needs to be adjusted, an operator pulls the first locking piece to enable the first locking piece to overcome the elastic force of the first elastic piece to move, so that the first locking piece is pulled out of the gear hole 2821, then the second adapter tube 26 is rotated to adjust the air outlet angle to the required angle, and meanwhile, the baffle plate rotates along with the first locking piece. After the air-out angle adjustment to required angle, loosen first locking piece, first locking piece resets under the effect of first elastic component for the one end of first locking piece can stretch into in the gear hole 2821 of gear board corresponding position after the rotation, in order to lock the angle.

To facilitate the operator's removal of the first locking member, the end of the first locking member remote from the gear 282 may be provided with a pull ring 281 for ease of operation.

In other embodiments, the first locking assembly may have other configurations, as shown in fig. 3, including a ratchet 291, a pawl 292, and a second resilient member. The ratchet wheel 291 is fixedly arranged on the second adapter tube 26 and is coaxially arranged with the horizontal tube so as to be capable of rotating with the second adapter tube 26; one end of the pawl 292 is rotatably arranged on the vertical pipe, the other end of the pawl 292 can be matched with the ratchet wheel 291, the second elastic piece is connected with the vertical pipe and the pawl 292, the pawl 292 can be driven to rotate relative to the vertical pipe, the pawl 292 is matched with the ratchet wheel 291, and therefore the second adapter pipe 26 is prevented from rotating.

When the air outlet angle needs to be adjusted, the operator rotates the pawl 292, so that the pawl 292 overcomes the elasticity of the second elastic member to be disengaged from the ratchet 291, and the second adapter tube 26 can rotate relative to the horizontal tube. After the air outlet angle is adjusted to a required angle, the pawl 292 is released, and the pawl 292 resets under the action of the second elastic piece, so that the pawl 292 can be matched with the ratchet 291 to lock the angle.

For the convenience of operator's rotation pawl 292, the middle part and the vertical pipe of pawl 292 rotate to be connected, and the one end of pawl 292 is provided with the spanner, and the operator can drive pawl 292 through holding the spanner and rotate to convenient operation.

For the transmission of realizing the driving piece in the handle 11 and the impeller in the cleaning head 200 to be connected, the transmission subassembly can include flexible axle and bevel gear subassembly, the flexible axle is worn to locate in the expansion pipe, the bevel gear subassembly sets up in first adapter 25 and second adapter 26, the one end and the driving piece transmission of flexible axle are connected, the other end passes through the bevel gear subassembly and is connected with the impeller transmission, in order to realize power transmission, and flexible axle occupation space is less, can make full use of the inner space of expansion pipe 12, it is more compact to compare other transmission modes and is favorable to making the structure of cleaning the instrument.

In order to avoid bending the flexible shaft, a positioning sleeve can be arranged in the telescopic pipe 12, and two ends of the positioning sleeve can be connected with the telescopic pipe 12 through a stopping clamp so as to prevent the positioning sleeve from moving in the telescopic pipe 12. The flexible shaft is arranged in the positioning sleeve in a penetrating mode, and the bending of the flexible shaft is limited through the positioning sleeve so as to guarantee the reliability and stability of transmission.

Specifically, as shown in fig. 4 and 5, the bevel gear assembly includes a first bevel gear 31 and a second bevel gear 32 that are in meshing transmission, and a third bevel gear 34 and a fourth bevel gear 35 that are in meshing transmission. The first bevel gear 31 is rotatably arranged in the vertical pipe and is in transmission connection with the flexible shaft, and the second bevel gear 32 is rotatably arranged in the horizontal pipe. The third bevel gear 34 is rotatably disposed in the first pipe body, and is coaxially disposed and fixedly connected with the second bevel gear 32, and the fourth bevel gear 35 is coaxially disposed with the impeller and can drive the impeller to rotate.

In this embodiment, through the transmission of bevel gear subassembly, not only can realize the transmission of flexible axle and impeller and be connected, can adapt to the structure of cleaning aircraft nose 200 moreover, realize the change of transmission direction.

In this embodiment, the horizontal pipe can rotate with first body and cup joint to connect through first pivot 33, simple to operate, simple structure. The one end of first pivot 33 is provided with spacing portion, and the other end stretches into in first body and the horizontal pipe in proper order by the junction of first body and second body to stretch out by the junction of horizontal pipe and vertical pipe, and the one end that stretches out first adapter tube 25 can be connected with the buckle round pin, in order to realize the axial fixity of first pivot 33 with spacing portion cooperation.

The second bevel gear 32 and the third bevel gear 34 may be an integral structure, and may be sleeved outside the first rotating shaft 33, so that the fixing of the installation position is realized by the support of the first rotating shaft 33.

It is understood that the horizontal tube may be rotatably sleeved outside the second adapter tube 26 as shown in fig. 5, or may be rotatably disposed inside the second adapter tube 26.

In order to ensure that the first bevel gear 31 and the second bevel gear 32 can normally contact and do not transmit power when the second adapter tube 26 rotates relative to the first adapter tube 25, in this embodiment, the first rotating shaft 33 is rotatably connected with the first adapter tube 25 or the second adapter tube 26, and the second bevel gear 32 and the third bevel gear 34 can be rotatably arranged on the first rotating shaft 33 through a bearing. When the second adapter tube 26 rotates relative to the first adapter tube 25, the second adapter tube 26 drives the first rotating shaft 33 to rotate, so that the first rotating shaft 33 can rotate relative to the second bevel gear 32 and the third bevel gear 34, the meshing position of the first bevel gear 31 and the second bevel gear 33 is unchanged, the second bevel gear 32 can be prevented from rotating, and the flexible shaft can be prevented from rotating.

When the angles of the first adapter tube 25 and the second adapter tube 26 are locked, the first rotating shaft 33 is not rotated because the first adapter tube and the second adapter tube cannot rotate relatively, so that the flexible shaft rotates, the second bevel gear 32 can be driven by the first bevel gear 31 to rotate relative to the first rotating shaft 33, and power can be transmitted.

Similarly, in order to avoid that the third bevel gear 34 and the fourth bevel gear 35 can keep transmission contact and cannot drive the impeller to rotate when the second adaptor pipe 26 rotates relative to the horizontal pipe, in this embodiment, a second rotating shaft 36 can be rotatably connected to the second pipe body through a bearing, and the third bevel gear 34 and the fourth bevel gear 35 are sleeved outside the second rotating shaft 36 and can rotate synchronously with the second rotating shaft 36.

When the second adapter tube 26 rotates relative to the horizontal tube, because the second bevel gear 32 and the third bevel gear 34 are both rotationally connected with the first rotating shaft 33, the second bevel gear 32 and the third bevel gear 34 do not rotate, the second tube body drives the second rotating shaft 34 therein and the fourth bevel gear 35 thereon to integrally rotate around the axis of the horizontal tube, the fourth bevel gear 35 and the second adapter tube 26 do not relatively rotate, the fourth bevel gear 35 rolls around the first rotating shaft 33 along the circumferential direction of the third bevel gear 34, and therefore the third bevel gear 34 and the fourth bevel gear 35 can be kept in normal contact under the condition of adjusting the air outlet angle.

In order to increase the degree of freedom of the cleaning head 200 and to make the adjustment of the air outlet angle more flexible, the second pipe body can be rotatably connected with the housing 21. Through setting the second adapter tube 26 to the L-shaped, the rotation axis of the second tube body and the shell is perpendicular to the rotation axis of the first tube body and the horizontal tube, so that the air outlet can realize the steering at two angles. In other embodiments, the included angle between the rotation axis of the second tube and the housing and the rotation axis of the first tube and the horizontal tube may also be an acute angle or an obtuse angle.

Specifically, the casing 21 is provided with a first flange 211 towards one end of the second adapter tube 26, and the second tube body can be rotatably sleeved outside the first flange 211 to realize the rotatable connection of the casing 21 and the second adapter tube 26, so that the installation is convenient and the structure is simple.

In order to lock the angles of the casing 21 and the second adapter tube 26 to fix the air outlet angle of the cleaning head 200, the cleaning head 200 further includes a second locking assembly, and the second locking assembly can lock the angles of the second adapter tube 26 and the casing 21.

Specifically, the second locking assembly includes a second locking member 27 and a third elastic member. The second locking member 27 is slidably disposed outside the second adapter tube 26, as shown in fig. 6, a locking groove 271 is disposed on an end surface of the second locking member 27 facing the housing 21, and a locking block capable of being inserted into the locking groove 271 is disposed on the housing 21. When the casing 21 and the second adapter tube 26 need to be locked, the second locking piece 27 can slide in the direction close to the casing 21 under the driving of the third elastic piece, so that the locking piece is inserted into the locking groove 271, the circumferential fixation of the casing 21 is realized, the casing 21 is prevented from rotating relative to the second adapter tube 26, and the purpose of locking the air outlet angle is achieved.

In other embodiments, the locking groove 271 may be provided on the end surface of the housing 21, and correspondingly, the locking block is provided on the second locking piece 27.

When the air outlet angle needs to be adjusted, an operator can pull the second locking member 27, so that the second locking member 27 slides in a direction away from the casing 21 relative to the second adapter tube 26 against the elastic force of the third elastic member, thereby disengaging the locking block from the locking groove 271, and the casing 21 can rotate relative to the second adapter tube 26.

After the operator loosens the second locking piece 27, the second locking piece 27 will reset under the effect of the third elastic piece, and for the locking groove 271 still can be locked with the locking block in a matching manner, the locking block and/or the locking groove 271 can be provided with a plurality of locking grooves and arranged in a circular manner around the axis of the second pipe body.

As shown in fig. 7, a second flange 212 is further disposed on an end surface of the housing 21 facing the second adapter tube 26, the second flange 212 is sleeved outside the first flange 211, and a plurality of locking blocks are disposed on an inner wall of the second flange 212 around an axis of the second tube, and extend along an axial direction of the second tube. The second locking member 27 is of an annular structure and is sleeved outside the second pipe body to provide a guiding function for the movement of the second locking member 27. The end of the second locking member 27 near the housing 21 is provided with a plurality of locking grooves 271. When the second locking member 27 is reset, one end of the second locking member 27 can extend between the first flange 211 and the second flange 212, and the locking block at the corresponding position is inserted into the locking groove 271 to realize angle locking.

Optionally, the distance between two adjacent locking blocks matches the distance between two adjacent locking grooves 271, so that at least one locking block is engaged with the locking groove 271 every time the housing 21 rotates by a corresponding angle.

In order to prevent the second locking member 27 from rotating relative to the second adapter tube 26, as shown in fig. 7 and 8, one of the second locking member 27 and the second adapter tube 26 is provided with a guide groove 272 extending in the axial direction of the second locking member 27, and the other is provided with a guide block 261 slidably engaged with the guide groove 272. Through the cooperation of the guide block 261 and the guide groove 272, the second locking member 27 can be guided to slide relative to the second adapter tube 26, and the relative rotation between the second locking member 27 and the second adapter tube 26 can be limited, so that after the locking groove 271 on the second locking member 27 is matched with the locking block on the housing 21, the relative rotation between the housing 21 and the second adapter tube 26 can be prevented.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (12)

1. A cleaning implement, comprising:

a hand-held lever (100);

the driving piece is arranged in the handheld rod (100) and is positioned at the bottom end;

the cleaning machine head (200) is arranged at the top end of the handheld rod (100), the cleaning machine head (200) comprises a machine shell (21) and an impeller, an air outlet is formed in the machine shell (21), and the impeller is rotatably arranged in the machine shell (21); and

and the transmission assembly is in transmission connection with the driving piece and the impeller.

2. The cleaning tool as claimed in claim 1, characterized in that the cleaning head (200) is movably connected to the hand-held lever (100) to adjust an air outlet angle of the cleaning head (200).

3. The cleaning tool as set forth in claim 2, characterized in that the cleaning head (200) further comprises:

the first adapter tube (25) comprises a vertical tube and a horizontal tube which are vertically connected, the vertical tube is connected with the handheld rod (100), and the horizontal tube is rotatably connected with the machine shell (21); and

a first locking component capable of locking the angle of the first adapter tube (25) with the housing (21).

4. The cleaning implement of claim 3, characterized in that the transmission assembly comprises:

the flexible shaft penetrates through the handheld rod (100), and one end of the flexible shaft is in transmission connection with the driving piece;

the first rotating shaft (33) extends along the axial direction of the horizontal pipe, one end of the first rotating shaft (33) is connected with the first adapter pipe (25), and the other end of the first rotating shaft is connected with the machine shell (21);

the first bevel gear (31) is arranged in the vertical pipe and is in transmission connection with the flexible shaft; and

the second bevel gear (32) is rotatably sleeved on the first rotating shaft (33) and is in meshed transmission with the first bevel gear (31), and the second bevel gear (32) is in transmission connection with the impeller.

5. The cleaning tool as set forth in claim 3, characterized in that said first locking member comprises:

the gear piece (282) is arranged on the machine shell (21), and a plurality of gear holes (2821) are formed in the gear piece (282) around the axis of the horizontal pipe;

the first locking piece is movably connected with the first adapter tube (25); and

and the first elastic piece is connected with the first locking piece and the first adapter tube (25), and the first elastic piece can drive the first locking piece to move relative to the first adapter tube (25) so that one end of the first locking piece extends into the gear hole (2821).

6. The cleaning tool as set forth in claim 3, characterized in that said first locking member comprises:

a ratchet (291) provided on the housing (21);

a pawl (292) with one end rotatably arranged on the first adapter tube (25) and the other end capable of being matched with the ratchet wheel (291); and

a second elastic member connecting the first adapter tube (25) and the pawl (292), the second elastic member being capable of driving the pawl (292) to cooperate with the ratchet wheel (291) to prevent the housing (21) from rotating.

7. The cleaning tool as set forth in claim 4, characterized in that the cleaning head (200) further comprises:

the second adapter tube (26) comprises a first tube body and a second tube body which are vertically connected, the first tube body is rotatably connected with the first adapter tube (25), and the second tube body is rotatably connected with the shell (21); and

a second locking assembly capable of locking the angle of the second adaptor tube (26) with the housing (21).

8. The cleaning implement of claim 7, wherein the transmission assembly further comprises:

the third bevel gear (34) is rotatably sleeved outside the first rotating shaft (33) and is coaxially arranged and fixed with the second bevel gear (32);

the second rotating shaft (36) is rotatably arranged in the second pipe body, and the second rotating shaft (36) and the impeller are coaxially arranged and fixed; and

and the fourth bevel gear (35) is sleeved outside the second rotating shaft (36) and is fixed, and the fourth bevel gear (35) is in meshing transmission with the third bevel gear (34).

9. The cleaning tool as set forth in claim 7, characterized in that the second locking assembly comprises:

the second locking piece (27) is arranged outside the second pipe body in a sliding mode, one of the second locking piece (27) and the machine shell (21) is provided with a locking groove (271) extending along the axial direction of the second pipe body, and the other locking piece is provided with a locking block; and

and a third elastic member connecting the second locking member (27) and the second tube, wherein the third elastic member can drive the second locking member (27) to slide relative to the second tube so that the locking block is inserted into the locking groove (271).

10. The cleaning tool as set forth in claim 9, characterized in that one of said second locking member (27) and said second pipe body is provided with a guide groove (272) extending in the axial direction of said second pipe body, and the other is provided with a guide block (261) slidably fitted with said guide groove (272).

11. The cleaning tool as claimed in any one of claims 1 to 10, characterized in that the cleaning head (200) further comprises:

one end of the air duct (23) is communicated with the air outlet; and

and the shovel blade (24) is connected with the other end of the air guide cylinder (23).

12. The cleaning tool as claimed in claim 11, wherein the cross-sectional area of the air duct (23) is gradually reduced along the flow direction of the air flow, and the opening of the air duct (23) at the end connected to the blade (24) is flat.

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